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Rev 1378 Rev 1384
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                              ;;
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;;                                                              ;;
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;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
 3 
;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;;
4 
;; Distributed under terms of the GNU General Public License    ;;
 4 
;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
 5 
;;   02.02.2010  turbanoff  - support 70.5                      ;;
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;;   23.01.2010  turbanoff  - read from ext2fs                  ;;
 6 
;;   23.01.2010  turbanoff  - support 70.0 70.1                 ;;
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;;                                                              ;;
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;;                                                              ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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 10 
 
Line 11... Line 11...
11 
$Revision: 1378 $
 11 
$Revision: 1384 $
12 
 
 12 
 
13 
EXT2_BAD_INO        = 1
 13 
EXT2_BAD_INO        = 1
14 
EXT2_ROOT_INO        = 2
 14 
EXT2_ROOT_INO        = 2
Line 120... Line 120...
120 
        call    kernel_alloc
 120 
        call    kernel_alloc
121 
        mov     [ext2_data.ext2_save_block], eax        ; and for temp block
 121 
        mov     [ext2_data.ext2_save_block], eax        ; and for temp block
122 
        call    kernel_alloc
 122 
        call    kernel_alloc
123 
        mov     [ext2_data.ext2_temp_block], eax        ; and for get_inode proc
 123 
        mov     [ext2_data.ext2_temp_block], eax        ; and for get_inode proc
Line 124... Line 124...
124 
 
 124 
 
125 
        mov     ebp, [ebx+88]
 125 
        movzx   ebp, word [ebx+88]
126 
        mov     ecx, [ebx+32]
 126 
        mov     ecx, [ebx+32]
127 
        mov     edx, [ebx+40]
 127 
        mov     edx, [ebx+40]
Line 128... Line 128...
128 
        mov     eax, [ebx+20]                           ; first_data_block
 128 
        mov     eax, [ebx+20]                           ; first_data_block
Line 326... Line 326...
326 
            pop     esi
 326 
            pop     esi
327 
        .next_rec:
 327 
        .next_rec:
328 
            movzx   eax, [ebx + EXT2_DIR_STRUC.rec_len]
 328 
            movzx   eax, [ebx + EXT2_DIR_STRUC.rec_len]
329 
            add     ebx, eax                                ;к след. записи
 329 
            add     ebx, eax                                ;к след. записи
330 
            cmp     ebx, edx                                ;проверим конец ли
 330 
            cmp     ebx, edx                                ;проверим конец ли
331 
            jne     .start_rec
 331 
            jb      .start_rec
332 
            jmp     .ret
 332 
            jmp     .ret
Line 333... Line 333...
333 
 
 333 
 
334 
    .test_find:
 334 
    .test_find:
335 
        cmp     byte [esi], 0
 335 
        cmp     byte [esi], 0
Line 416... Line 416...
416 
 
 416 
 
417 
        mov     edi, [EXT2_files_in_folder]     ;edi = число блоков для чтения
 417 
        mov     edi, [EXT2_files_in_folder]     ;edi = число блоков для чтения
418 
        and     [EXT2_read_in_folder], 0
 418 
        and     [EXT2_read_in_folder], 0
Line 419... Line 419...
419 
        and     [EXT2_files_in_folder], 0
 419 
        and     [EXT2_files_in_folder], 0
420 
 
 420 
 
Line 421... Line 421...
421 
        mov     esi, [ebp + EXT2_INODE_STRUC.i_blocks]
 421 
        mov     eax, [ebp + EXT2_INODE_STRUC.i_blocks]
422 
        mov     [EXT2_counter_blocks], esi
 422 
        mov     [EXT2_counter_blocks], eax
Line 423... Line 423...
423 
 
 423 
 
Line 447... Line 447...
447 
            inc     [EXT2_files_in_folder]
 447 
            inc     [EXT2_files_in_folder]
448 
          @@:
 448 
          @@:
449 
            movzx   ebx, [eax+EXT2_DIR_STRUC.rec_len]
 449 
            movzx   ebx, [eax+EXT2_DIR_STRUC.rec_len]
450 
            add     eax, ebx                            ; к следующей записи
 450 
            add     eax, ebx                            ; к следующей записи
451 
            cmp     eax, [EXT2_end_block]              ; проверяем "конец"
 451 
            cmp     eax, [EXT2_end_block]              ; проверяем "конец"
452 
            je      .end_block_find_wanted
 452 
            jae      .end_block_find_wanted
453 
            loop    .find_wanted_cycle
 453 
            loop    .find_wanted_cycle
454 
    .find_wanted_end:
 454 
    .find_wanted_end:
Line 455... Line 455...
455 
 
 455 
 
456 
        mov     ecx, edi
 456 
        mov     ecx, edi
Line 460... Line 460...
460 
            cmp     [eax + EXT2_DIR_STRUC.inode], 0     ; if (inode = 0) => not used
 460 
            cmp     [eax + EXT2_DIR_STRUC.inode], 0     ; if (inode = 0) => not used
461 
            jz      .empty_rec
 461 
            jz      .empty_rec
462 
            inc     [EXT2_files_in_folder]
 462 
            inc     [EXT2_files_in_folder]
463 
            inc     [EXT2_read_in_folder]
 463 
            inc     [EXT2_read_in_folder]
Line -... Line 464...
- 
 
 464 
 
- 
 
 465 
            mov     edi, edx
- 
 
 466 
            push    eax ecx
- 
 
 467 
            xor     eax, eax
- 
 
 468 
            mov     ecx, 40 / 4
- 
 
 469 
            rep     stosd
- 
 
 470 
            pop     ecx eax
464 
 
 471 
 
465 
            test    [eax + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR   ;папка или нет
 472 
            cmp     [eax + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR   ;папка или нет
Line 466... Line 473...
466 
            jnz      @F
 473 
            jz      @F
467 
 
 474 
 
468 
            push    eax                                             ;получим размер, если это файл
 475 
            push    eax                                             ;получим размер, если это файл
469 
            mov     eax, [eax + EXT2_DIR_STRUC.inode]
 476 
            mov     eax, [eax + EXT2_DIR_STRUC.inode]
Line 475... Line 482...
475 
            mov     dword [edx+36], ebx
 482 
            mov     dword [edx+36], ebx
476 
            xor     dword [edx], FS_FT_DIR          ; для файлов xor - 2 раза
 483 
            xor     dword [edx], FS_FT_DIR          ; для файлов xor - 2 раза
477 
            pop     eax
 484 
            pop     eax
478 
          @@:
 485 
          @@:
479 
            xor     dword [edx], FS_FT_DIR
 486 
            xor     dword [edx], FS_FT_DIR
480 
            mov     dword [edx+4], FS_FT_ASCII      ; symbol type in name
 487 
            or      dword [edx+4], FS_FT_ASCII      ; symbol type in name
Line 481... Line 488...
481 
 
 488 
 
482 
            push    ecx esi                         ;copy name
 489 
            push    ecx esi                         ;copy name
483 
            movzx   ecx, [eax + EXT2_DIR_STRUC.name_len]
 490 
            movzx   ecx, [eax + EXT2_DIR_STRUC.name_len]
484 
            mov     edi, edx
 491 
            mov     edi, edx
Line 491... Line 498...
491 
            add     edx, 40 + 264                       ; go to next record
 498 
            add     edx, 40 + 264                       ; go to next record
492 
        .empty_rec:
 499 
        .empty_rec:
493 
            movzx   ebx, [eax + EXT2_DIR_STRUC.rec_len]
 500 
            movzx   ebx, [eax + EXT2_DIR_STRUC.rec_len]
494 
            add     eax, ebx
 501 
            add     eax, ebx
495 
            cmp     eax, [EXT2_end_block]
 502 
            cmp     eax, [EXT2_end_block]
496 
            je      .end_block_wanted
 503 
            jae     .end_block_wanted                   ;по хорошему должно быть =, но ччнш
497 
            loop    .wanted_cycle
 504 
            loop    .wanted_cycle
Line 498... Line 505...
498 
 
 505 
 
499 
    .wanted_end:                        ;теперь дойдем до конца чтобы узнать сколько файлов в папке
 506 
    .wanted_end:                        ;теперь дойдем до конца чтобы узнать сколько файлов в папке
500 
        or      ecx, -1                 ;цикл уже есть, просто поставим ему огромный счетчик
 507 
        or      ecx, -1                 ;цикл уже есть, просто поставим ему огромный счетчик
Line 615... Line 622...
615 
        je      .next_block_folder
 622 
        je      .next_block_folder
Line 616... Line 623...
616 
 
 623 
 
617 
        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_REG_FILE
 624 
        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_REG_FILE
618 
        je      .test_file
 625 
        je      .test_file
619 
        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR
 626 
        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR
- 
 
 627 
        jne     .this_is_nofile
620 
        jne     .not_found
 628 
 
621 
    .test_dir:
 629 
    ;.test_dir:
622 
        cmp     edi, 0
 630 
        cmp     edi, 0
Line 623... Line 631...
623 
        jne     .this_is_folder
 631 
        jne     .this_is_nofile
624 
 
 632 
 
625 
        mov     eax, [ebx + EXT2_DIR_STRUC.inode]
 633 
        mov     eax, [ebx + EXT2_DIR_STRUC.inode]
626 
        mov     ebx, [ext2_data.ext2_save_inode]                ;все же папка.
 634 
        mov     ebx, [ext2_data.ext2_save_inode]                ;все же папка.
Line 640... Line 648...
640 
    .not_found:
 648 
    .not_found:
641 
    	pop     edx ecx ebx
 649 
    	pop     edx ecx ebx
642 
        or      ebx, -1
 650 
        or      ebx, -1
643 
        mov     eax, ERROR_FILE_NOT_FOUND
 651 
        mov     eax, ERROR_FILE_NOT_FOUND
644 
        ret
 652 
        ret
645 
    .this_is_folder:
 653 
    .this_is_nofile:
646 
        pop     edx ecx ebx
 654 
        pop     edx ecx ebx
647 
        or      ebx, -1
 655 
        or      ebx, -1
648 
        mov     eax, ERROR_ACCESS_DENIED
 656 
        mov     eax, ERROR_ACCESS_DENIED
649 
    .end_read:
 657 
    .end_read:
650 
        ret
 658 
        ret
Line 651... Line 659...
651 
 
 659 
 
652 
    ;-----------------------------------------------------------------------------final step
 660 
    ;-----------------------------------------------------------------------------final step
653 
    .get_file:
 - 
 
654 
        xchg    bx, bx
 661 
    .get_file:
Line 655... Line 662...
655 
        mov     ebp ,ebx
 662 
        mov     ebp ,ebx
656 
 
 663 
 
657 
        ;pop     eax edi ecx         ; первый_блок память кол-во_байт
 664 
        ;pop     eax edi ecx         ; первый_блок память кол-во_байт
Line 779... Line 786...
779 
        ret
 786 
        ret
780 
    @@:
 787 
    @@:
781 
        xor     eax, eax
 788 
        xor     eax, eax
782 
        ret
 789 
        ret
783 
;========================
 790 
;========================
- 
 
 791 
;in : esi -> name           not save register
- 
 
 792 
;out: ebp -> inode cf=0
- 
 
 793 
;     ebp -> trash cf=1
- 
 
 794 
ext2_find_lfn:
- 
 
 795 
        mov     ebp, [ext2_data.root_inode]
- 
 
 796 
    .next_folder:
- 
 
 797 
        or      [EXT2_counter_blocks], -1               ;счетчик блоков папки    cur block of inode
- 
 
 798 
        mov     eax, [ebp + EXT2_INODE_STRUC.i_blocks]  ;убывающий счетчик блоков
- 
 
 799 
        add     eax, [ext2_data.count_block_in_block]
- 
 
 800 
        mov     [EXT2_end_block], eax
- 
 
 801 
    .next_block_folder:
- 
 
 802 
        mov     eax, [ext2_data.count_block_in_block]
- 
 
 803 
        sub     [EXT2_end_block], eax
- 
 
 804 
        jz      .not_found
- 
 
 805 
        inc     [EXT2_counter_blocks]
- 
 
 806 
        mov     ecx, [EXT2_counter_blocks]
- 
 
 807 
        call    ext2_get_inode_block
- 
 
 808 
 
- 
 
 809 
        mov     eax, ecx
- 
 
 810 
        mov     ebx, [ext2_data.ext2_save_block]        ;ebx = cur dir record
- 
 
 811 
        call    ext2_get_block
- 
 
 812 
 
- 
 
 813 
        mov     eax, esi
- 
 
 814 
        call    ext2_test_block_by_name
- 
 
 815 
        cmp     eax, esi                                ;нашли имя?
- 
 
 816 
        jz      .next_block_folder
- 
 
 817 
 
- 
 
 818 
        cmp     byte [esi],0
- 
 
 819 
        jz      .get_inode_ret
Line -... Line 820...
- 
 
 820 
 
- 
 
 821 
        cmp     [ebx + EXT2_DIR_STRUC.file_type], EXT2_FT_DIR
- 
 
 822 
        jne     .not_found                                      ;нашли, но это не папка
- 
 
 823 
        mov     eax, [ebx + EXT2_DIR_STRUC.inode]
- 
 
 824 
        mov     ebx, [ext2_data.ext2_save_inode]                ;все же папка.
- 
 
 825 
        call    ext2_get_inode
- 
 
 826 
        mov     ebp, ebx
- 
 
 827 
        jmp     .next_folder
- 
 
 828 
 
- 
 
 829 
    .not_found:
- 
 
 830 
        stc
- 
 
 831 
        ret
- 
 
 832 
    .get_inode_ret:
- 
 
 833 
        mov     eax, [ebx + EXT2_DIR_STRUC.inode]
- 
 
 834 
        mov     ebx, [ext2_data.ext2_save_inode]
- 
 
 835 
        call    ext2_get_inode
- 
 
 836 
        mov     ebp, ebx
- 
 
 837 
    .ret:
- 
 
 838 
        clc
- 
 
 839 
        ret
- 
 
 840 
 
- 
 
 841 
 
784 
 
 842 
;========================
785 
ext2_HdRewrite:
 843 
ext2_HdRewrite:
786 
;    xchg    bx, bx
 844 
;    xchg    bx, bx
787 
        xor     ebx, ebx
 845 
        xor     ebx, ebx
788 
        mov     eax, ERROR_UNSUPPORTED_FS
 846 
        mov     eax, ERROR_UNSUPPORTED_FS
Line 796... Line 854...
796 
ext2_HdSetFileEnd:
 854 
ext2_HdSetFileEnd:
797 
;    xchg    bx, bx
 855 
;    xchg    bx, bx
798 
        xor     ebx, ebx
 856 
        xor     ebx, ebx
799 
        mov     eax, ERROR_UNSUPPORTED_FS
 857 
        mov     eax, ERROR_UNSUPPORTED_FS
800 
        ret
 858 
        ret
- 
 
 859 
 
801 
ext2_HdGetFileInfo:
 860 
ext2_HdGetFileInfo:
- 
 
 861 
        cmp     byte [esi], 0
802 
;    xchg    bx, bx
 862 
        jz      .doit
- 
 
 863 
 
- 
 
 864 
        call    ext2_find_lfn
803 
        xor     ebx, ebx
 865 
        jnc     .doit2
- 
 
 866 
    ;.not_found:
804 
        mov     eax, ERROR_UNSUPPORTED_FS
 867 
        mov     eax, ERROR_FILE_NOT_FOUND
805 
        ret
 868 
        ret
- 
 
 869 
 
- 
 
 870 
    .doit:
- 
 
 871 
        mov     ebp, [ext2_data.root_inode]
- 
 
 872 
    .doit2:
- 
 
 873 
        xor     eax, eax
- 
 
 874 
        mov     edi, edx
- 
 
 875 
        mov     ecx, 40/4
- 
 
 876 
        rep stosd               ; fill zero
- 
 
 877 
 
- 
 
 878 
        test    [ebp + EXT2_INODE_STRUC.i_mode], EXT2_S_IFDIR
- 
 
 879 
        jz      @F
- 
 
 880 
        or      dword [edx], FS_FT_DIR
- 
 
 881 
    @@:
- 
 
 882 
        mov     byte [edx+1], FS_FT_ASCII
- 
 
 883 
        mov     eax, [ebp + EXT2_INODE_STRUC.i_size]            ;low size
- 
 
 884 
        mov     ebx, [ebp + EXT2_INODE_STRUC.i_dir_acl]         ;high size
- 
 
 885 
        mov     dword [edx+32], eax
- 
 
 886 
        mov     dword [edx+36], ebx
- 
 
 887 
 
- 
 
 888 
        xor     eax, eax
- 
 
 889 
        ret
- 
 
 890 
 
806 
ext2_HdSetFileInfo:
 891 
ext2_HdSetFileInfo:
807 
;    xchg    bx, bx
 892 
;    xchg    bx, bx
808 
        xor     ebx, ebx
 893 
        xor     ebx, ebx
809 
        mov     eax, ERROR_UNSUPPORTED_FS
 894 
        mov     eax, ERROR_UNSUPPORTED_FS
810 
        ret
 895 
        ret